or -vN (set loglevel to N). Existing usage -v N will result in the "errors-only log level" (single -v) with ignored argument N. The -vvvv usage still works. It will not break _existing_ scripts (those sitting in the criu repo are fixed), but will result in a bit less verbosity in logs, which is not that bad. Sorry for inconvenience (if any) :( Thanks, Pavel